Improvement in key-hole guards



1. La BLANC & x.- St. PIERRE.

Key-Holefiuard.

No.l69,17 8, Pat entedOct.26,1875.

WITNESSES: I I "NT 5. v z @5440; @JM.

QMZ/MWQ MPETERS, PHOTO-LITHOGRAPHER. WASHINGTON. D Cv UNITED STATESPATENT OFFICE;

JOHN LA BLANG AND XAVIER ST. PIERRE, OF OPHIR CITY, UTAH TERRITORY.

IMPROVEMENT IN KEY-HOLE GUARDS.

Specification forming part of Letters Patent No. 169,178, dated October26, 1875; application filed August 14,1875.

To all whom it may concern:

Be it known that we, JOHN LA BLANC and XAVIER ST. PIERRE, of Ophir City,in the county of Tooele and Territory of Utah, have Figure l is a sideelevation of a lock with our improvement, and Fig. 2 is a horizontalsection taken on line as :20 of Fig. 1.

Similar letters of reference indicate corresponding parts.

A is the slide-plate for covering the keyhole B. It is arranged betweenthe outside plate Got the lock and a protecting-plate, D,

to slide forward and backward freely, and connected by the pin E and rodF to the crank G of a knob-spindle, K, the knob being on the inside ofthe lock, where it can be turned after the door is locked to cover thekey-hole. The plate A has a little groove in the side of the partpassing over the key-hole, so that it can slide over the end of the keywhen the key is in the lock, to save the trouble of taking out the key.L is the stop-pin, on which the connecting-rod rests a little below thecrank-center when the hole is covered, so that the slide cannot beshoved back except by the knob.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent-- The combination of a slide, A, crankedknobspindle Gr, connecting-rod, and a stop-pin, L, with a lock, in themanner described, for covering the key-hole.

' JOHN LA BLANO.

XAVIER ST. PIERRE.

Witnesses:

CHARLES SHIELDS, PETER DEVENY.

